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Thread: duplicate line in a text file
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Old 04-25-2008
nixguy nixguy is offline
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Join Date: Jun 2007
Posts: 3
duplicate line in a text file
i would like to scan file in for duplicate lines, and print the duplicates to another file,
oh and it has to be case insensitive.

example

line1
line2
line2
line3
line4
line4

outputfile:
line2
line4

any ideas